I can sing like I always wanted to sing, thanks to a new iPad app

This one's amazing.  A concert pianist, and his company, MuseAmi, have developed a iPad app that shows you the score as it plays, and adds automated harmony and background sound.  And the best part, it assures that your voice comes out in perfect tune.  http://video.nytimes.com/video/2010/08/20/arts/1247468534351/improvox-unzipping-the-dna-of-music.html?th&emc=th